package com.itheima.book.utils.oss;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;
import java.io.*;
import java.util.UUID;

@Component
public class AliOSSUtils {

    @Autowired
    private AliOSSproperties aliOSSUtils;

    public String upload(MultipartFile file) throws IOException {
        //获取阿里云oss参数
        String endpoint = aliOSSUtils.getEndpoint();
        String accessKeyId = aliOSSUtils.getAccessKeyId();
        String accessKeySecret = aliOSSUtils.getAccessKeySecret();
        String bucketName = aliOSSUtils.getBucketName();

        // 获取上传的文件的输入流
        InputStream inputStream = file.getInputStream();

        // 避免文件覆盖
        String originalFilename = file.getOriginalFilename();
        String fileName = UUID.randomUUID().toString().replaceAll("-", "") + originalFilename.substring(originalFilename.lastIndexOf("."));

        //上传文件到 OSS
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
        ossClient.putObject(bucketName, fileName, inputStream);

        //文件访问路径
        String url = "https://" + bucketName + "." + endpoint + "/" + fileName;
        
        // 关闭ossClient
        ossClient.shutdown();
        return url;// 把上传到oss的路径返回
    }

}
